In the past I would use the free version of Under Construction Page (which is also done by the same creators of this plugin). It was sufficient for my needs until this deal came up on AppSumo. I also really liked the other plugin that was offered by them earlier this year, WP Reset Pro. So I thought it was worth to give this plugin a try.

The Under Construction Page plugin was good enough but I find Coming Soon & Maintenance Mode to be much better. I love how versatile it is. I can pick and choose which pages are under construction or if I want the entire website to be under construction. I love the many theme options to choose from and how easy it is to set everything up.

The room for improvement I would like to see is more custom options on the maintenance page when WordPress is in the middle of updates so it fully lives up to its plugin title. Right now it's too limited than I expected.

For someone with multiple sites to manage this is a great, versatile plugin to use. Its worth keeping.